These are the toughest shackles on the market. Don?t be fooled by cheap shackles that will twist and break while your have your Jeep flexed out! Our shackles are made from VERY heavy material. The sides are 3/8ths thick and instead of being held together with a bolt in the middle (that will cause your shackles to twist) we weld tubing in the middle to make them ultra rigid. And unlike some of the cheaper shackle lifts that are on the market ours come with GRADE 8 HARDWARE which includes nylon lock nuts. Even if you do not buy our kit NEAVER trust a lower grade bolt on any of your suspension components if you do you are taking a big risk. You can also combine lift springs with a shackle lift to give you the desired total lift. Shackles will be shipped ready to paint.